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Using the information from the first question, which of the following represents the amount of money the store will earn from selling 70 videos? *

Using the information from the first question which of the following represents the amount of money the store will earn from selling 70 videos class=

Respuesta :

The equation for Mishra spends on buying x videos is,

[tex]y=8x+200[/tex]

The equation for the cost of selling x videos is,

[tex]s=12x[/tex]

The equation for earnig in the store by selling x videos is,

[tex]\begin{gathered} P=12x-(8x+200) \\ =4x-200 \end{gathered}[/tex]

Substitute 70 for x in the equation to determine the earning from selling 70 videos.

[tex]\begin{gathered} P=4\cdot70-200 \\ =280-200 \\ =80 \end{gathered}[/tex]

So answer is $80.

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